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    <title>Document</title>
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    <img src="images/1122879666_1184688902_88_88.png" alt="">
    <div>上午好</div>
    <script>
        var img = document.querySelector('img');
        var div = document.querySelector('div');
        var date = new Date();
        var h = date.getHours();
        if (h < 12) {
            img.src = 'images/1122879666_1184688902_88_88.png';
            div.innerHTML = '亲亲上午好';
        }else if (h < 18) {
            img.src = 'images/head.png';
            div.innerHTML = '亲亲下午好'
        }else {
            img.src = 'images/p1.png';
            div.innerHTML = '亲亲晚上好';
        }
    </script>
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